US4302871A - Press or reversing roller for double sieve band drainage machines - Google Patents

Press or reversing roller for double sieve band drainage machines Download PDF

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Publication number
US4302871A
US4302871A US06/084,514 US8451479A US4302871A US 4302871 A US4302871 A US 4302871A US 8451479 A US8451479 A US 8451479A US 4302871 A US4302871 A US 4302871A
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US
United States
Prior art keywords
roller
press
adjacent rollers
sieve
covering means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/084,514
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English (en)
Inventor
Rupert Syrowatka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz AG
Original Assignee
Andritz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Andritz AG filed Critical Andritz AG
Assigned to MASCHINENFABRIK ANDRITZ ACTIENGESELLSCHAFT reassignment MASCHINENFABRIK ANDRITZ ACTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SYROWATKA RUPERT
Application granted granted Critical
Publication of US4302871A publication Critical patent/US4302871A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/24—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
    • B30B9/246—The material being conveyed around a drum between pressing bands
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D21F1/80—Pulp catching, de-watering, or recovering; Re-use of pulp-water using endless screening belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/20—Rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping

Definitions

  • the present invention relates to a press or reversing roller for double sieve band water-removing or drainage machines for dehydrating or draining suspensions, particularly a press roller in which the sieve lengths with the interposed sheet of material are partially encircled and are provided in a multiple-piece manner over the width of the sieve, and one step bearing each is disposed at the contact point of two adjacent rollers.
  • Press or reversing rollers in double sieve band dehydrating or drainage machines serve for squeezing the liquid out of the suspension which is guided between two sieves and gradually subjected to increased pressure.
  • a roller arrangement is known from U.S. Pat. No. 1,764,456 in which the rollers are made in a bipartite manner over the width of the sieve path. This makes it possible to accommodate an additional bearing in the roller center, or also makes possible a roller displacement in the traveling direction of the sieve. It is disadvantageous in this roller arrangement that now a dehydration in the central bearing area is no longer possible and therefore the filter cake has in that case too much residual moisture.
  • a press roller with a small diameter for wide dehydrating or drainage machines which may be employed both as a supporting or a backing roller for a planar sheet of material and also as a reversing roller, which is multiply positioned and nevertheless dehydrates the sheet of material without stages.
  • this object is obtained by virtue of the fact that secured between the end faces of the successively arranged roller parts and over the bearing body is a stationary covering means which in the outer contour thereof has the same radius as the roller parts, at least in the area of band looping, and serves as a glide shoe.
  • FIG. 1 is a view of a press or reversing roller with a central bearing
  • FIG. 2 illustrates the construction of the glide shoe.
  • FIG. 1 Apparent from FIG. 1 is the view of a press roller 4 supported in the center thereof.
  • This press roller 4 does not consist of one piece but of roller parts 4a, 4b and is positioned in the conventional manner at its end faces with outer bearings 5. It also contains in addition a central step or support bearing and the latter is composed of the bearing block 1, and the bearing body 3 over which a glide shoe 2 closes off the bearing point.
  • the glide shoe 2 has the same radius as the press roller 4 and extends at least over the area of the looping of the sieve bands.
  • the bearing body 3 with its bearings 3a is so provided that it is in part installed into the lateral wall of the roller parts 4a, 4b of the press roller 4. Here there are provided, for example, the ball bearings.
  • the outer bearings 5 are connected in known manner with the frame of the machine. Further provided on the press roller 4 are the upper and lower sieves 6 with the sludge cake 7 positioned therebetween.
  • FIG. 2 Shown in FIG. 2 is a cross-sectional view through the press roller 4 at the bearing point.
  • the bearing block 1 is evident in which the bearing cap or cover is constructed at the same time as a glide shoe 2.
  • the upper and lower sieves 6 are drawn in at a specific looping angle with the sludge cake 7 disposed therebetween and are intended to make it clear that the looping may be about 180°.
  • the glide shoe 2 must have the same radius as the press roller 4.
  • the roller diameter for the desired high contact pressure is smaller because, for example, a step or support bearing is positioned in the center of the roller. It is also possible to provide for several such step or support bearings, but it is essential that the glide shoe fills the gap between the two end faces of the roller in order to make it possible to obtain a filter cake without stages.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Filtration Of Liquid (AREA)
  • Paper (AREA)
  • Drying Of Solid Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US06/084,514 1978-10-27 1979-10-12 Press or reversing roller for double sieve band drainage machines Expired - Lifetime US4302871A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT7676/78 1978-10-27
AT767678A AT360829B (de) 1978-10-27 1978-10-27 Press- oder umlenkwalze fuer doppelsiebband- -entwaesserungsmaschinen

Publications (1)

Publication Number Publication Date
US4302871A true US4302871A (en) 1981-12-01

Family

ID=3598417

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/084,514 Expired - Lifetime US4302871A (en) 1978-10-27 1979-10-12 Press or reversing roller for double sieve band drainage machines

Country Status (16)

Country Link
US (1) US4302871A (de)
JP (1) JPS5561396A (de)
AT (1) AT360829B (de)
AU (1) AU5187779A (de)
BR (1) BR7906688A (de)
CA (1) CA1120318A (de)
CS (1) CS215033B2 (de)
DD (1) DD146551A5 (de)
DE (1) DE2934026C2 (de)
FI (1) FI793227A (de)
FR (1) FR2439962A1 (de)
HU (1) HU178050B (de)
SE (1) SE434171B (de)
SU (1) SU880255A3 (de)
YU (1) YU258879A (de)
ZA (1) ZA795707B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6020395U (ja) * 1983-07-14 1985-02-12 株式会社クボタ 高面圧式ベルトプレス型脱水機
CN102288019B (zh) * 2011-06-24 2013-01-16 张家港青尼罗河曼迪科机械有限公司 金属板材刷洗设备中下挤干辊两端轴承座的压紧装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1764456A (en) * 1928-03-16 1930-06-17 Mantius Otto Fiber-board machine
US3743100A (en) * 1969-12-04 1973-07-03 A Bahr Filter press, more particularly for dewatering sludge in sewage treatment plants
US4222433A (en) * 1976-09-24 1980-09-16 Concast Ag Guide roller for continuous casting installations

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE700623C (de) * 1939-04-02 1940-12-24 Fred Fahrni Langsiebmaschine zum Herstellen von Platten aus Faserstoffbrei
US2712681A (en) * 1953-11-24 1955-07-12 American Viscose Corp Spreader guide roll
US3131571A (en) * 1961-05-29 1964-05-05 Beloit Corp Paper machine roll
AT348325B (de) * 1977-02-14 1979-02-12 Andritz Ag Maschf Presspartie fuer entwaesserungsmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1764456A (en) * 1928-03-16 1930-06-17 Mantius Otto Fiber-board machine
US3743100A (en) * 1969-12-04 1973-07-03 A Bahr Filter press, more particularly for dewatering sludge in sewage treatment plants
US4222433A (en) * 1976-09-24 1980-09-16 Concast Ag Guide roller for continuous casting installations

Also Published As

Publication number Publication date
SU880255A3 (ru) 1981-11-07
FR2439962A1 (fr) 1980-05-23
FI793227A (fi) 1980-04-28
ATA767678A (de) 1980-06-15
DD146551A5 (de) 1981-02-18
AT360829B (de) 1981-02-10
CS215033B2 (en) 1982-06-25
DE2934026A1 (de) 1980-05-08
DE2934026C2 (de) 1982-06-03
SE7908526L (sv) 1980-04-28
HU178050B (en) 1982-02-28
CA1120318A (en) 1982-03-23
BR7906688A (pt) 1980-06-03
ZA795707B (en) 1981-03-25
SE434171B (sv) 1984-07-09
JPS5561396A (en) 1980-05-09
AU5187779A (en) 1980-05-01
YU258879A (en) 1982-10-31

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AS Assignment

Owner name: MASCHINENFABRIK ANDRITZ ACTIENGESELLSCHAFT, REICHS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SYROWATKA RUPERT;REEL/FRAME:003854/0774

Effective date: 19790926

STCF Information on status: patent grant

Free format text: PATENTED CASE